Vibration of a pendulum-
Pendulum swing so consistantly they have been used for clock fors centurys Frank oppenheimer- showed the pendulum back and forth it produces a sine curve. this show that it moves at a constant speed.
Longitudinal waves- more back and forth called compression waves
Inferance pattern- when two wave overlap
Constructive pattern- is where they combng and dont interfer.
Destructive interferace- cancalles out or disrupts
Standing waves- have nodes that stay still and anti-nodes that are in between
Doppler Effect- when a police car speeds past and you hear the siren change pitch, This happens because the sound waves coming from he siren are effected by the speed of the police car and which direction it is travleing in.
Vibrations and Waves
-A vibration is known as a wiggle in space
-A wave is wiggle in space and time
Vibration of a pendulum-
Pendulum swing so consistantly they have been used for clock fors centurys
Frank oppenheimer- showed the pendulum back and forth it produces a sine curve. this show that it moves at a constant speed.
Transverse waves- wave created bu shaking a rope or object of a diffrent object
the medium is at a right angle to which way it travels
Longitudinal waves- more back and forth called compression waves
Inferance pattern- when two wave overlap
Constructive pattern- is where they combng and dont interfer.
Destructive interferace- cancalles out or disrupts
Standing waves- have nodes that stay still and anti-nodes that are in between
Doppler Effect- when a police car speeds past and you hear the siren change pitch, This happens because the sound waves coming from he siren are effected by the speed of the police car and which direction it is travleing in.
Bow waves- when the speed of medium is the speed of the wavesh
Shock waves- produces an overlapping effect